You can consolidate the Darkforce Blast and Darkforce Weapons into one single d8, they're both attack powers, you can only pick one power from each power-set per turn and they're both rated d8, so make them one die.
Also, one thing I noticed which is kinda game-breaking; Your second Power-Set has a sfx that can move emotional stress (which isn't usually common to gain, btw) to physical stress for no extra cost. Now that's a pretty cool sfx, however when combo'd with your First Power-Set's 'From the Darkforce itself' sfx, you can spend 1PP to remove Physical stress entirely...
I'd probably remove the emotional stress sfx, as tbh the First-Power set's sfx is basically a reskin of 'Healing Factor', which is fine as a sfx (Wolverine has the exact same thing, for example).
Lastly, how would you feel with your Shutdown Limits going to shutting down the whole Power-Set until you recover it, rather than a single power from them? I think it gives you a bit more risk, but also I think personally it'd be a bit more balancing and you're not short on Power dice anyway.
Though all in all, quite a good character there. :)
As a link to the last bit there... Having one Power-set a time is fine... Lots of characters only have one. ^^